Contributors: 4
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| David Cohen |
392 |
87.31% |
2 |
40.00% |
| Andy Shevchenko |
51 |
11.36% |
1 |
20.00% |
| Jérémy Lefaure |
4 |
0.89% |
1 |
20.00% |
| Thomas Gleixner |
2 |
0.45% |
1 |
20.00% |
| Total |
449 |
|
5 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* platform_gpio_keys.c: gpio_keys platform data initialization file
*
* (C) Copyright 2013 Intel Corporation
* Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
*/
#include <linux/input.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/platform_device.h>
#include <asm/intel-mid.h>
#define DEVICE_NAME "gpio-keys"
/*
* we will search these buttons in SFI GPIO table (by name)
* and register them dynamically. Please add all possible
* buttons here, we will shrink them if no GPIO found.
*/
static struct gpio_keys_button gpio_button[] = {
{KEY_POWER, -1, 1, "power_btn", EV_KEY, 0, 3000},
{KEY_PROG1, -1, 1, "prog_btn1", EV_KEY, 0, 20},
{KEY_PROG2, -1, 1, "prog_btn2", EV_KEY, 0, 20},
{SW_LID, -1, 1, "lid_switch", EV_SW, 0, 20},
{KEY_VOLUMEUP, -1, 1, "vol_up", EV_KEY, 0, 20},
{KEY_VOLUMEDOWN, -1, 1, "vol_down", EV_KEY, 0, 20},
{KEY_MUTE, -1, 1, "mute_enable", EV_KEY, 0, 20},
{KEY_VOLUMEUP, -1, 1, "volume_up", EV_KEY, 0, 20},
{KEY_VOLUMEDOWN, -1, 1, "volume_down", EV_KEY, 0, 20},
{KEY_CAMERA, -1, 1, "camera_full", EV_KEY, 0, 20},
{KEY_CAMERA_FOCUS, -1, 1, "camera_half", EV_KEY, 0, 20},
{SW_KEYPAD_SLIDE, -1, 1, "MagSw1", EV_SW, 0, 20},
{SW_KEYPAD_SLIDE, -1, 1, "MagSw2", EV_SW, 0, 20},
};
static struct gpio_keys_platform_data gpio_keys = {
.buttons = gpio_button,
.rep = 1,
.nbuttons = -1, /* will fill it after search */
};
static struct platform_device pb_device = {
.name = DEVICE_NAME,
.id = -1,
.dev = {
.platform_data = &gpio_keys,
},
};
/*
* Shrink the non-existent buttons, register the gpio button
* device if there is some
*/
static int __init pb_keys_init(void)
{
struct gpio_keys_button *gb = gpio_button;
int i, good = 0;
for (i = 0; i < ARRAY_SIZE(gpio_button); i++) {
gb[i].gpio = get_gpio_by_name(gb[i].desc);
pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
gb[i].gpio);
if (gb[i].gpio < 0)
continue;
if (i != good)
gb[good] = gb[i];
good++;
}
if (good) {
gpio_keys.nbuttons = good;
return platform_device_register(&pb_device);
}
return 0;
}
late_initcall(pb_keys_init);